2 Matching Results

Results open in a new window/tab.

Propeller (open access)

Propeller

Patent for a boat propeller that does not create a vacuum behind it and is more efficient than other propellers.
Date: July 23, 1912
Creator: Blake, David H.
Object Type: Patent
System: The Portal to Texas History
[Handwritten Letter from I. H. Kempner to Harris Leon Kempner, August 23, 1954] (open access)

[Handwritten Letter from I. H. Kempner to Harris Leon Kempner, August 23, 1954]

Letter from I. H. Kempner to Harris Leon Kempner discussing a bill and about the situation in Pecos.
Date: August 23, 1954
Creator: Kempner, Isaac H. (Isaac Herbert), 1873-1967
Object Type: Letter
System: The Portal to Texas History