Measuring tape
US4729171A · kind A · utility
26Cited by
9References
17Claims
0Family size
Inventor
Key dates
| Filing date | Feb 20, 1987 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Feb 20, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B3/1089
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tape measure case incorporates an actuating element to project a marking element through a guide aperture for marking at a measured distance. The marking element can be a pencil lead. It is accommodated within the case, and the bulk and shape of the case are little changed from conventional.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.