Improvements in electro thermal garments for therapeutic purposes
Publisher: [Great Seal Patent Office?]
Published: 1909
Place of publication: London?]
Language: eng
Subjects: Coats; Footwear; Heating; Equipment and supplies
Notes: Title from head of text.

"Burton Robert Charles, of Portland, Strate of Oregon, United States of America".

At head of title: No. 20,408 A.D. 1909.

"Date of application, 6th Sept., 1909 ... Accepted, 1st Sept., 1910."

Includes complete specification.