Golf shaft, golf club, and production method for golf shaft

Details Golf shaft, golf club, and production method for golf shaft Golf shaft, golf club, and production method for golf shaft

2008-03-21

2009-08-25

Blau, Stephen L. (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C266S129000, C266S132000

Reexamination Certificate

active

07578750

ABSTRACT:
A golf shaft includes: a hollow tubular structure; and a gradient structure in which an amount of retained austenite is increased from an approximate center in a thickness direction of the hollow tubular structure to a surface of the hollow tubular structure.

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patent: A-2005-013535 (2005-01-01), None
patent: A-2005-034517 (2005-02-01), None

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