Terry Ryan fonds
Terry Ryan fonds
Poultry plucking machine patent
Poultry plucking machine patent
Patent Specifications for E.W. Guptill's ultra-high frequency transmission, directive antennas for microwaves, and wave guide assemblies
Patent Specifications for E.W. Guptill's ultra-high frequency transmission, directive antennas for microwaves, and wave guide assemblies
Lists of patents and patent applications by W.H. Watson, E.W. Guptill, and H. Gruenberg
Lists of patents and patent applications by W.H. Watson, E.W. Guptill, and H. Gruenberg
James Benjamin Westhaver fonds
James Benjamin Westhaver fonds
Ernest Wilmot Guptill fonds
Ernest Wilmot Guptill fonds
Drafts of patent application invention disclosures for directive antennae for microwaves
Drafts of patent application invention disclosures for directive antennae for microwaves
Correspondence with Commissioner of Patents re. E.W. Guptill's directive antennas for microwaves patents
Correspondence with Commissioner of Patents re. E.W. Guptill's directive antennas for microwaves patents
Correspondence re. E.W. Guptill's patent applications
Correspondence re. E.W. Guptill's patent applications
Correspondence re. E.W. Guptill's award/patent disputes
Correspondence re. E.W. Guptill's award/patent disputes
Affidavit of E.W. Guptill and W.H. Watson's directive antennas for microwaves patent
Affidavit of E.W. Guptill and W.H. Watson's directive antennas for microwaves patent
