Technology

Sump Pump

technology

Arrastra

metallurgy

Wright Military Flyer Of 1909

aircraft

U-boat

German submarine

F-100

aircraft

Becket, Frederick Mark

American metallurgist

Howe, Frederick Webster

American inventor and manufacturer

Integrated Pest Management

agriculture

Graphical User Interface

computing

Concorde

Summary, History, & Facts

Scharnhorst

German warship

Argus

ship

Gilchrist, Percy

British metallurgist

Special Delivery

postal service

Shingle

building material

Hacienda

estate