Robert E. Bober - Framingham MA Robert G. Lavallee - Ashland MA
Assignee:
American Optical Corporation - Southbridge MA
International Classification:
H03K 304
US Classification:
328132
Abstract:
An electrical circuit for operating upon a slowly varying input signal (on the order of one volt per minute) to provide an output signal representative of the input signal derivative. The circuitry employs at least two feedback loops, one of which is constructed similar to an integrator amplifier. One particularly useful electro-medical application of this apparatus and method lies in the measurement of osmotic fragility of red blood cells, where percentage hemolysis of the blood slowly varies as a function of tonicity of suspension of the medium in which the blood sample is suspended. In this measurement the exact point of maximum slope is important and is provided by the present invention.
Name / Title
Company / Classification
Phones & Addresses
Mr. Robert Lavallee Tres
Vintage Kennels Inc Ruff Cuts Pet Grooming
2208 St Joseph Blvd Unit 107, Orleans, ON K1C 1E8 6138348883
Robert Lavallee Owner
La Vallee Consulting Consulting
171 S St, Boston, MA 02130
Robert Lavallee President
A&L Corp Coach Inc Local Passenger Transportation
18 Sammet St, Everett, MA 02149 6173874994
Robert Lavallee President
A&L CORPORATE COACH, INC Limo Services
18 Sammet St, Everett, MA 02149 Massachusetts 6173874994
Robert W Lavallee Vice president
ADEP GROUP, INC Asbestos & Lead Abatement & Removal Services
8 Industrial Way Ste E2, Salem, NH 03079 8 Industrial Way STE E2, Salem, NH 03079 East Hampstead, NH 03826 6034585036
Robert Lavallee Controller
The Boston Bed Company Ret Furniture
135 Spark St, Brockton, MA 02302
Robert Lavallee Tres
Vintage Kennels Inc Pet Grooming
6138348883
Robert William Lavallee
Robert Lavallee DDS Dentists
61 Amherst St, Nashua, NH 03064 6038827578
Medicine Doctors
Dr. Robert W Lavallee, Nashua NH - DDS (Doctor of Dental Surgery)
Dr. Lavallee graduated from the New York Medical College in 1997. He works in Ansonia, CT and specializes in Pediatrics and Adolescent Medicine. Dr. Lavallee is affiliated with Griffin Hospital and Yale-New Haven Childrens Hospital.
Roger Farrand, Carmen Fafard, Juliannne Hetu, Robert Lataille, Rachel Picard, Vincent Larochelle, Robert Demers, Pauline Maynard, Celine Stuckey, Judith Forcier, Jeanne Lapierre