I have checked in the information of your Yonex MusclePower Limited shaft Serial:8075209; Cone Code:181182SP (date=18 Nov 2008) to my information list of Yonex rackets made in Japan, its shaft serial and cone code are legitimate. However you still need to inspect the other physical features of the racket carefully and compare the specifications to ascertain its total legitimacy or authenticity yourself.
I have checked in the information of your Yonex Armortec 50 shaft Serial:2240777; Cone Code:160394ID (date=16 Mar 2009) to my information list of Yonex rackets Developed by Yonex Japan (on the shaft) and Made in Taiwan (on the cap), its shaft serial and cone code are legitimate. However you still need to inspect the other physical features of the racket carefully and compare the specifications to ascertain its total legitimacy or authenticity yourself.
I have checked in the information of your Yonex Armortec 900T 1) shaft Serial:7756914; Cone Code:230684SP (date=23 Jun 2008); 2) shaft Serial:7756921; Cone Code:230684SP (date=23 Jun 2008) to my information list of Yonex rackets made in Japan, their shaft serials and cone codes are legitimate. However you still need to inspect the other physical features of the rackets carefully and compare the specifications to ascertain their total legitimacy or authenticity yourself.
---->8---- cut here (include this line) ---->8---- racket model: Yonex NANOSPEED 9000 TYPE S shaft serial: 8256616 cone code : 030294SP source : Luxis Sport, HongKong price : HK$ 1250 ---->8---- cut here (include this line) ---->8----
---->8---- cut here (include this line) ---->8---- racket model: Yonex NANOSPEED 7000 shaft serial: 5945642 cone code : 020264CH source : from Friend ---->8---- cut here (include this line) ---->8----
---->8---- cut here (include this line) ---->8---- racket model: Yonex Armortec 500 shaft serial: 3748040 cone code : 270358CH Made in Japan source : Friends price : Gift ---->8---- cut here (include this line) ---->8----
---->8---- cut here (include this line) ---->8---- racket model: Yonex MusclePower 22 shaft serial: 6941180 cone code : 161033SP source : Friends price : Gift ---->8---- cut here (include this line) ---->8----
---->8---- cut here (include this line) ---->8---- racket model: Yonex NanoSpeed 8000 shaft serial: 7834338 cone code : 621800JP source : Friends price : Gift ---->8---- cut here (include this line) ---->8----
---->8---- cut here (include this line) ---->8---- racket model: Yonex NanoSpeed 9000 shaft serial: 7834351 cone code : 621800JP source : Friends price : Gift ---->8---- cut here (include this line) ---->8----
---->8---- cut here (include this line) ---->8---- racket model: Yonex Arcsaber 10 shaft serial: 7669368 cone code : 140583DK source : racket pro sweden price : 1500sek ---->8---- cut here (include this line) ---->8----
---->8---- cut here (include this line) ---->8---- racket model: Yonex Muscle Power 29 Light shaft serial: 8526481 cone code : 160564DK source : friend price : unknown ---->8---- cut here (include this line) ---->8----
racket model: Yonex Armortec 900T shaft serial: 6631670 cone code : 190172AS source : From Friend (gift) I think it may be a fake... :-(
Made in Japan and Made in Taiwan have different serial numbers. The Made in Taiwan ones/ "lower end" models have higher serials
---->8---- cut here (include this line) ---->8---- racket model: Yonex NS 9900 shaft serial: 8393615 cone code : 190392AS source : gift from friend price : US$200 ---->8---- cut here (include this line) ---->8----
---->8---- cut here (include this line) ---->8---- racket model: Yonex NS 6000 shaft serial: 706798 cone code : 080872SP source : gift from friend price : US$150 ---->8---- cut here (include this line) ---->8----