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Archival DescriptionAffidavit 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
Correspondence re. E.W. Guptill's award/patent disputes
Correspondence re. E.W. Guptill's award/patent disputes
Correspondence re. E.W. Guptill's patent applications
Correspondence re. E.W. Guptill's patent applications
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
Drafts of patent application invention disclosures for directive antennae for microwaves
Drafts of patent application invention disclosures for directive antennae for microwaves
Ernest Wilmot Guptill fonds
Ernest Wilmot Guptill fonds
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
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