Protel Inc

Protel Inc is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Engineers Consulting
• Telephone Coin & Card Operated

North American Industry Classification System (NAICS) Categories:

• Wired Telecommunications Carriers > Pay Telephone Service > Telephone Coin & Card Operated Services
• Engineering Services > Engineers Consulting

Standard Industry Classification (SIC) Categories:

• Telephone Communications, Except Radio > Pay Telephone Service > Telephone Coin & Card Operated Services
• Engineering Services > Engineers Consulting