Inclination measuring instrument
Latest Techtronic Industries Co. Ltd. Patents:
Description
FIG. 1 is a front elevational view of an inclination measuring instrument showing my new design;
FIG. 2 is a bottom plan view;
FIG. 3 is a top plan view;
FIG. 4 is a right side elevational view;
FIG. 5 is a left side elevational view; and,
FIG. 6 is a front elevational view thereof, shown with the ruler element in an alternate condition of use.
Referenced Cited
U.S. Patent Documents
Other references
D306980 | April 3, 1990 | Pivovaroff |
978525 | December 1910 | Werts |
4394801 | July 26, 1983 | Thibadeaux |
4442606 | April 17, 1984 | Graham et al. |
4513512 | April 30, 1985 | Fisher |
4660293 | April 28, 1987 | Kovacs |
4745689 | May 24, 1988 | Hiltz |
- Hong Kong Enterprise, Time Ruler Calculators, Nov. 1987, p. 328, found in D10/62 Design Art Library.
Patent History
Patent number: D335634
Type: Grant
Filed: Jan 24, 1991
Date of Patent: May 18, 1993
Assignee: Techtronic Industries Co. Ltd. (New Territories)
Inventor: Tang K. Yau (Kowloon)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine D. Davis
Law Firm: Majestic, Parsons, Siebert & Hsue
Application Number: 7/645,283
Type: Grant
Filed: Jan 24, 1991
Date of Patent: May 18, 1993
Assignee: Techtronic Industries Co. Ltd. (New Territories)
Inventor: Tang K. Yau (Kowloon)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine D. Davis
Law Firm: Majestic, Parsons, Siebert & Hsue
Application Number: 7/645,283
Classifications