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Hewitt, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulically operated permanent type well packer assembly
- Patent number 5,095,978
- Issue date Mar 17, 1992
- AVA International
- Neil H. Akkerman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Subsurface well apparatus
- Patent number 4,407,363
- Issue date Oct 4, 1983
- AVA International
- Neil H. Akkerman
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well packers and slip assemblies for use therewith
- Patent number 4,393,929
- Issue date Jul 19, 1983
- AVA International
- Neil H. Akkerman
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
73219390 - SNAPFIX
- Serial number 73219390
- Registration number 1151129
- Filing date Jun 13, 1979
- AVA International
- 28 - Games and playthings