Bert W. Piper — 5 Patents at Unknown

Bert W. Piper has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 1981 and the most recent in March 1986. Bert W. Piper ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Bert W. Piper in Romulus, MI, US.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
4575713	Disturbance alarm	—	1986-03-11
4311983	Vehicle parking signal device	—	1982-01-19
4289434	Portable key seat cutter for shafts	—	1981-09-15
4284377	Portable key seat cutter	—	1981-08-18
4243989	Vehicle antenna	—	1981-01-06

Bert W. Piper — 5 Patents

Issued Patents All Time

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