Search
Search Constraints
Start Over You searched for: Subjects Patents as Topic ✖Remove constraint Subjects: Patents as TopicRefine by:
- Text41
- Patents as Topic✖[remove]41
- United States14
- Ether6
- Humans5
- Anesthesia, Inhalation4
- "Professional atmosphere and morals or, patents and secrets vs. a liberal profession": a reply1
- A process of obtaining a dry cold current of air from ice, and its different applications1
- American dental patents: a vindication of the truth of certain articles in the American journal of dental science, entitled a "Sketch of American dental patents", and a refutation of the charges made against them, by the Dental register : a notice of the action of the Mississippi Valley Association and Ohio College of Dental Surgery, on the subject of patenting professional improvements1
- American inventions and discoveries in medicine, surgery and practical sanitation1
- An Introduction to Genes and Patents1
- English41
- 1000 to 1099 0
- 1100 to 1199 0
- 1200 to 1299 0
- 1300 to 1399 0
- 1400 to 1499 0
- 1500 to 1599 0
- 1600 to 1699 0
- 1700 to 1799 0
- 1800 to 1899 26
- 1900 to 1999 10
- 2000 to 2023 5
Current results range from 1829 to 2019