PROTOCOL SYSTEMS INC/NEW

Q: Mar 31 2000

FY: Dec 31 1999

Q: Sep 30 1999

Q: Sep 30 1999

Q: Jun 30 1999

Q: Mar 31 1999

FY: Dec 31 1998

Q: Sep 30 1998

Q: Jun 30 1998

Q: Mar 31 1998

FY: Dec 31 1997

Q: Sep 30 1997

Q: Jun 30 1997

Q: Mar 31 1997

FY: Mar 31 1997

Q: Nov 14 1996

Q: Aug 12 1996

1,7

5,7

Current report pursuant to Section 13 or 15(d)

Current report pursuant to Section 13 or 15(d)

Certification of termination of registration of a class of securities (Section 12(g))

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Registration statement under Securities Act of 1933 (amendment)

Additional Information for Proxy Statement/ Votes

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

Definitive Proxy Statement

AMVESCAP PLC \GA\

WELCH ALLYN INC

WELCH ALLYN INC

WELCH ALLYN INC

WELCH ALLYN INC

PROTOCOL SYSTEMS INC/NEW

PROTOCOL SYSTEMS INC/NEW

WELCH ALLYN INC

WELCH ALLYN INC

WESTPORT ASSET MANAGEMENT INC /ADV

EQSF ADVISERS INC ET AL

WELLINGTON MANAGEMENT CO LLP

AMVESCAP PLC \GA\

DIMENSIONAL FUND ADVISORS INC

BECKER CAPITAL MANAGEMENT INC

WESTPORT ASSET MANAGEMENT INC /ADV

EQSF ADVISERS INC ET AL

DIMENSIONAL FUND ADVISORS INC

BECKER CAPITAL MANAGEMENT INC

WELLINGTON MANAGEMENT CO LLP

No description available

No description available