Earl E. Frank — 9 Patents at Abex

Earl E. Frank has been granted 9 US patents while listed as an inventor at Abex. The first was granted in 1981 and the most recent in January 1987. Earl E. Frank ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Earl E. Frank in Tallman, NY, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
4637578	Railroad frog having movable wing rails	—	1987-01-20
4624428	Spring rail frog	—	1986-11-25
4428552	Railroad switch machine	Bing S. Yee	1984-01-31
4409902	Spike drivers	—	1983-10-18
4362282	Railroad frogs	—	1982-12-07
4346751	Foundry molds	—	1982-08-31
4346785	Rail lubricator	—	1982-08-31
4251042	Railway double tongue switch	—	1981-02-17
4245719	Railroad lubricators	—	1981-01-20

Earl E. Frank — 9 Patents

Issued Patents All Time

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