USD320485SExpiredUtility

Supporting device for height-adjusting of floors

50
Assignee: HUANG CHIEN-TEHPriority: May 17, 1989Filed: May 17, 1989Granted: Oct 1, 1991
Est. expiryMay 17, 2009(expired)· nominal 20-yr term from priority
Inventors:Chien-Teh Huang
50
PatentIndex Score
6
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for supporting device for height-adjusting of floor, as shown in FIGS. 1-7 and as herein described.

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