Hand Operated Vacuum Packing System for Seed Storage Allen Dong and Roger J. Edberg, I-Tech, P O Box 413 Veneta, Oregon 97487, USA This invention was declared public domain on November 29, 1989, a gift to humanity. A han - Vacuum packing - Document - PDFSEARCH.IO

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	Hand Operated Vacuum Packing System for Seed Storage Allen Dong and Roger J. Edberg, I-Tech, P O Box 413 Veneta, Oregon 97487, USA This invention was declared public domain on November 29, 1989, a gift to humanity. A han Add to Reading List Document Date: 2013-07-25 14:50:00 Open Document File Size: 73,64 KB Share Result on Facebook City Veneta / / Country United States / / IndustryTerm thin sheet metal / Moist food / tall food jars / rubber cup / large food can / dry food / rubber stopper / food can / rubber / rubber gasket / / Person Roger J. Edberg / Seed Storage Allen Dong / / ProvinceOrState Oregon / / SocialTag Mechanical engineering Presta valve Bicycle pump Mason jar Vacuum Valve Pressure cooking Check valve Valve stem Valves

Hand Operated Vacuum Packing System for Seed Storage Allen Dong and Roger J. Edberg, I-Tech, P O Box 413 Veneta, Oregon 97487, USA This invention was declared public domain on November 29, 1989, a gift to humanity. A hanAdd to Reading List