发明授权
US4086796A Key case head 失效
主要病例头

Key case head
摘要:
Key Case Head comprising a first generally cylindrically-shaped outer member having slot means in communication with offset openings, the offset openings being removed from either end of said slot means, the slot means being adapted to retain a key hook and the offset openings being adapted to permit a key hook to pass therethrough, and a second member disposed within the first member, the second member having slot means in alignment with the first member slot means and having recesses in communication therewith but offset therefrom, the second member being rotatably movable to selectively align the second member recesses with the first member openings to permit withdrawal or entrance of a key hook.
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