IEEE Global History Network > Topic Articles > System for using a microphone in a baseball base (Patent)

You are not logged in, please sign in to edit > Log in / create account  

• - Donor information
• - About IEEE Foundation

• - Automation
• - Bioengineering
• - Business, Management & Industry
• - Communications
• - Components, Circuits, Devices & Systems
• - Computers and Information Processing
• - Culture and Society
• - Engineered Materials & Dielectrics
• - Engineering Profession
• - Environment, Geoscience & Remote Sensing
• - Fields, Waves & Electromagnetics
• - IEEE
• - Lasers, Lighting & Electrooptics
• - Nuclear and Plasma Sciences
• - People and Organizations
• - Power, Energy & Industry Application
• - Scientific Tools and Discoveries
• - Signals
• - Standardization
• - Transportation

• - IEEE Regions
• - IEEE Sections
• - IEEE Societies

• - About History Center
• - About IEEE History Committee
• - History Center Staff
• - About IEEE Global History Network

• - What links here
• - Related changes
• - Special pages
• - Printable version
• - Permanent link
• - Random Page
• - Wikitext Formatting and Style Guide